Home / 930,787.32-1,284,485.78-528,379.32

Finding the Fourth Proportional to 930,787.32, 1,284,485.78 and 528,379.32

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Solution

The fourth proportional to 930,787.32, 1,284,485.78 and 528,379.32 is: 729,163.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,787.32 : 1,284,485.78 = 528,379.32 : x
  2. Step 2: Convert to fraction form
    930,787.32/1,284,485.78 = 528,379.32/x
  3. Step 3: Cross multiply
    930,787.32x = 1,284,485.78 × 528,379.32
  4. Step 4: Simplify right side
    930,787.32x = 678,695,722,986.07
  5. Step 5: Solve for x
    x = 678,695,722,986.07/930,787.32
  6. Step 6: Final answer
    x = 729,163.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.